Repour was designed to absorb the oxygen from one 750 ml bottle of wine, enjoyed glass-by-glass. If you move it to a second bottle, it may lose its oxygen-absorbing capacity before you finish the bottle. As a rule of thumb, when your bottle is empty, so is Repour.

While a vacuum pump can slow the degradation of your wine, the best-case scenario is that it’s only good for 2 or 3 days at most. If you properly “pull” a vacuum on the bottle, it can also pull out the wine’s aromatics and flavors – which do not return. Even if used correctly, it only creates up to a 75% vacuum, which still leaves a lot of oxygen in the bottle to cause damage. Leakage is another consideration, and some tests also show the seal on the vacuum can be completely broken within 12 hours. Air is made up of 21% oxygen, and Repour creates a 21% vacuum inside the bottle which means virtually zero oxygen is present to damage your wine.

Since air needs to pass through the sachet in order for the stopper to work, the introduction of moisture from laying a bottle on its side will render Repour ineffective. There is nothing harmful in the sachet, and nothing enters the wine, so there is no danger in drinking it. Depending on how long the bottle has been without Repour’s absorption capabilities though, there may still be oxygen in the bottle which has degraded it.

Testing on red, white, and rose wines by winemakers, sommeliers, and other wine professionals indicate both taste and aroma are unaffected by Repour’s technology.

Because Repour so effectively reduces the oxygen from the air above the wine and from the wine itself, we have found it can be helpful to allow a moment for the wine to open up again when returning for another glass. A simple swirl does the trick.

Yes. Repour is made of 100% recyclable materials. We recommend checking your city’s recycling program to understand exact methods of recycling in your area as standards and processes vary by municipality in the US. Check out our Repour Recycles page for information on recycling large quantities or if you’re interested in becoming a collection point.

A minimum of two years with no loss of function.

Repour works on sparkling wine as it removes the oxygen with no impact on the CO2, but the pressure inside the bottle can cause it to pop off the top. We know of people who are using it on sparkling wines now, but we don’t endorse that use due to the risk of it popping off the bottle. We’re working on a fixture that will securely hold Repour on a bottle so it can be used with no concern. Stay tuned!

Repour is designed to fit 99% of bottle neck diameters. To ensure a proper seal, give Repour a push into the bottle.

With Repour, refrigeration is not needed to slow deterioration. If you want to refrigerate your wine, go ahead; it will not interfere with Repour’s ability to perfectly preserve your wine.